On 2020-03-13 5:46 a.m., Peter Chen wrote:
On Fri, Mar 13, 2020 at 11:17 AM James <bjlockie@xxxxxxxxx> wrote:
Yes, from below message, you could know it.
bcdUSB 2.00
wMaxPacketSize 0x0200 1x 512 bytes
I'm trying to buy a USB dvdrw on Amazon but even different sellers sell
the same thing under a different "brand".
$ sudo lsusb -v -d 13fd:0840
Bus 001 Device 006: ID 13fd:0840 Initio Corporation INIC-1618L SATA
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x13fd Initio Corporation
idProduct 0x0840 INIC-1618L SATA
bcdDevice 1.14
iManufacturer 1 Generic
iProduct 2 External
iSerial 3 554830302020323534363832
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0020
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 2 SFF-8020i, MMC-2 (ATAPI)
bInterfaceProtocol 80
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
Is there any chance the Linux usb subsystem might be detecting incorrectly?
Maybe is uses the same IDs as the INIC-1618L SATA product but is a
slight upgrade to USB 3?
